Inflation explains the horizon and flatness problems.

Question

Quizplus · Accepted Answer

Inflation is a theory that proposes the universe underwent a rapid expansion soon after the Big Bang. This expansion would have smoothed out the irregularities in the early universe, solving the horizon problem (which is the question of why distant regions of the universe have similar properties) and the flatness problem (which is the question of why the universe appears to be so flat on a large scale). Therefore, the statement is true.

Inflation Explains the Horizon and Flatness Problems